/**********************************************************************\

 Copyright 2012 Diggory Blake

 This file is part of klip-engine

 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation, either version 3 of the License, or
 (at your option) any later version.

 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.

\**********************************************************************/
#pragma once

class kMemoryStream;

#include "kstream.h"
#include "kdata.h"

class kMemoryStream : public kStream {
private:
	kDataBuffer* _expandBuffer;
	const kDataBuffer* _writeBuffer;
	const kDataBufferView* _readBuffer;
	kData _writeData;
	kDataView _readData;
	kDataBuffer* _ownedBuffer;

public:
	kMemoryStream(keStreamOps ops = keStream_Read|keStream_Write|keStream_Seek|keStream_Measure|keStream_Expand);
	kMemoryStream(const kDataView& data, keStreamOps ops, bool copy);
	kMemoryStream(const kData& data, keStreamOps ops, bool copy);
	kMemoryStream(const kDataBufferView* data, keStreamOps ops, bool copy);
	kMemoryStream(const kDataBuffer* data, keStreamOps ops, bool copy);
	kMemoryStream(kDataBuffer* data, keStreamOps ops, bool copy);
	~kMemoryStream();

	virtual size_t write(const kDataView& data);
	virtual size_t read(const kData& data);
	virtual void seek(keSeekMode mode, size_t offset);
	virtual void flush();
};
